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NOISE

A FLAW IN HUMAN JUDGMENT

Abundant food for thought for professionals of all types as well as students of decision science and behavioral economics.

A sprawling study of errors in decision-making, some literal matters of life and death.

You go to a doctor complaining of chest pains. The doctor orders an angiogram. The hospital requires a second opinion before authorizing surgery, and the second doctor disagrees on the extent to which a specific blood vessel is blocked. These unpredictable disagreements over the same data are what Kahneman, Sibony, and Sunstein call “noise,” a species of human error that happens whenever such higher-order judgments are involved. Noise, they write, is rampant in medicine, where “different doctors make different judgments about whether patients have skin cancer, breast cancer, tuberculosis, pneumonia, depression, and a host of other conditions.” Noise is especially prevalent in psychiatry, they add, where subjective opinion is more pronounced than in other disciplines. A cousin of bias, noise is difficult to isolate and correct. In forensic science, the authors write, noise is implicated in nearly half of all misidentifications of perpetrators and wrongful imprisonments. Unlike some categories of error, noise is often not helped by the introduction of more information. Writing in often dense but generally nontechnical prose, the authors offer strategies for reducing noise. One is to average out predictions in, say, stock market performance, since “noise is inherently statistical.” Another is to consult the smartest people you can find; while they may not be flawless, “picking those with highest mental ability makes a lot of sense.” Since error combines with snap decisions, the authors endorse rigorous review and other strategies for noise reduction and “decision hygiene” as well as developing habits of mind that acknowledge both bias and error and favor examining the opinions of those with whom one disagrees as dispassionately and fairly as possible. “To improve the quality of our judgments,” they urge, “we need to overcome noise as well as bias.”

Abundant food for thought for professionals of all types as well as students of decision science and behavioral economics.

Pub Date: May 18, 2021

ISBN: 978-0-316-45140-6

Page Count: 464

Publisher: Little, Brown Spark

Review Posted Online: March 16, 2021

Kirkus Reviews Issue: April 1, 2021

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THINKING, FAST AND SLOW

Striking research showing the immense complexity of ordinary thought and revealing the identities of the gatekeepers in our...

A psychologist and Nobel Prize winner summarizes and synthesizes the recent decades of research on intuition and systematic thinking.

The author of several scholarly texts, Kahneman (Emeritus Psychology and Public Affairs/Princeton Univ.) now offers general readers not just the findings of psychological research but also a better understanding of how research questions arise and how scholars systematically frame and answer them. He begins with the distinction between System 1 and System 2 mental operations, the former referring to quick, automatic thought, the latter to more effortful, overt thinking. We rely heavily, writes, on System 1, resorting to the higher-energy System 2 only when we need or want to. Kahneman continually refers to System 2 as “lazy”: We don’t want to think rigorously about something. The author then explores the nuances of our two-system minds, showing how they perform in various situations. Psychological experiments have repeatedly revealed that our intuitions are generally wrong, that our assessments are based on biases and that our System 1 hates doubt and despises ambiguity. Kahneman largely avoids jargon; when he does use some (“heuristics,” for example), he argues that such terms really ought to join our everyday vocabulary. He reviews many fundamental concepts in psychology and statistics (regression to the mean, the narrative fallacy, the optimistic bias), showing how they relate to his overall concerns about how we think and why we make the decisions that we do. Some of the later chapters (dealing with risk-taking and statistics and probabilities) are denser than others (some readers may resent such demands on System 2!), but the passages that deal with the economic and political implications of the research are gripping.

Striking research showing the immense complexity of ordinary thought and revealing the identities of the gatekeepers in our minds.

Pub Date: Nov. 1, 2011

ISBN: 978-0-374-27563-1

Page Count: 512

Publisher: Farrar, Straus and Giroux

Review Posted Online: Sept. 3, 2011

Kirkus Reviews Issue: Sept. 15, 2011

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THE MYTH OF SISYPHUS

AND OTHER ESSAYS

This a book of earlier, philosophical essays concerned with the essential "absurdity" of life and the concept that- to overcome the strong tendency to suicide in every thoughtful man-one must accept life on its own terms with its values of revolt, liberty and passion. A dreary thesis- derived from and distorting the beliefs of the founders of existentialism, Jaspers, Heldegger and Kierkegaard, etc., the point of view seems peculiarly outmoded. It is based on the experience of war and the resistance, liberally laced with Andre Gide's excessive intellectualism. The younger existentialists such as Sartre and Camus, with their gift for the terse novel or intense drama, seem to have omitted from their philosophy all the deep religiosity which permeates the work of the great existentialist thinkers. This contributes to a basic lack of vitality in themselves, in these essays, and ten years after the war Camus seems unaware that the life force has healed old wounds... Largely for avant garde aesthetes and his special coterie.

Pub Date: Sept. 26, 1955

ISBN: 0679733736

Page Count: 228

Publisher: Knopf

Review Posted Online: Sept. 19, 2011

Kirkus Reviews Issue: Sept. 1, 1955

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